AI Text-to-Speech

SpeechGen

SpeechGen is an AI text-to-speech and voice generation platform for creating realistic audio in many languages with downloadable files.

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SpeechGen

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What is SpeechGen?

SpeechGen is an online AI voice generator and text-to-speech platform that converts written text into realistic spoken audio. It supports multiple voices, language selection, SSML controls, subtitle syncing, background music, and downloadable audio formats for personal and commercial use.

SpeechGen vs Similar AI Tools

Pricing ModelFree, PaidFreeFree, FreemiumFree, Freemium
Free Credits
Key Features
  • 5,000+ AI voices
  • 150 languages
  • Text to speech conversion
  • Entirely browser-based; nothing uploaded to a server
  • Uses ONNX Runtime Web for local inference
  • Supports multiple TTS models
  • AI host creation from photo
  • Content import from PDFs, URLs, notes, audio
  • Automatic script generation
  • Cited answers with source links and coverage meter
  • Podcast generation in multiple formats from any page
  • Flashcards with spaced repetition and Anki export
Pros
  • Large voice library with 5,000+ options
  • Supports 150 languages
  • Privacy-focused: all processing happens locally
  • Completely free and open-source
  • Quickly turns any content into a podcast
  • Easy to use, no recording equipment needed
  • Privacy-first with own keys and storage options
  • Cited answers ensure transparency
Cons
  • Character-based pricing may be hard to compare for some users
  • Advanced features may require learning SSML and formatting tags
  • Requires modern browser with WebAssembly support
  • Voice quality may vary compared to cloud-based TTS
  • Relies on AI voices, may lack human touch
  • Limited advanced editing features
  • Free tier may have usage limitations
  • Requires initial setup for self-hosted storage
Best For
  • Content creators
  • Video editors
  • Privacy-conscious users
  • Developers testing TTS models
  • Content creators
  • Educators
  • Researchers and students
  • Knowledge workers

How to use SpeechGen?

  1. 1Enter or paste your text into the editor.
  2. 2Choose a voice, language, and adjust speed, pitch, or volume if needed.
  3. 3Add SSML tags, speaker labels, or cut markers for pauses and multi-voice output.
  4. 4Click Convert to Speech.
  5. 5Download the finished audio in your preferred format, such as MP3, WAV, FLAC, OGG, or OPUS.

SpeechGen Key Features

  • 5,000+ AI voices
  • 150 languages
  • Text to speech conversion
  • MP3, WAV, FLAC, OGG, and OPUS downloads
  • SSML support
  • Multiple speakers in one file
  • Subtitle-to-audio syncing
  • Smart cache for free re-generation of identical text
  • Background music support
  • DOCX, PDF, and SRT upload support
  • Commercial license included
  • API access

SpeechGen Use Cases

  • Voiceovers for marketing videos
  • E-learning and training audio
  • Business phone menus and IVR
  • Audio guides and museum tours
  • Industrial safety announcements
  • Multilingual localization
  • Audiobooks and chapter-by-chapter narration
  • Subtitle-synced video dubbing

SpeechGen Pricing & Free Credits

SpeechGen currently operates on a Free, Paid model.

Free TierFree Credits

Free

$0

Start with 1,000 characters instantly, with no sign-up required. Free registration increases the daily allowance and no watermark is added to the first free usage.

Paid Plans

Pay-as-you-go

From $4.99

Buy credits when needed and use them at your own pace. Plans include a commercial license, history, smart caching, and access to all voices.

Voice quality tiers

STD / PRO / HD

Standard uses 0.5 per character, Pro uses 1 per character, and HD uses 2 per character for higher-quality synthesis options.

Free

$0

Start with 1,000 characters instantly, with no sign-up required. Free registration increases the daily allowance and no watermark is added to the first free usage.

Pay-as-you-go

From $4.99

Buy credits when needed and use them at your own pace. Plans include a commercial license, history, smart caching, and access to all voices.

Voice quality tiers

STD / PRO / HD

Standard uses 0.5 per character, Pro uses 1 per character, and HD uses 2 per character for higher-quality synthesis options.

SpeechGen Pros & Cons

Pros

  • Large voice library with 5,000+ options
  • Supports 150 languages
  • No sign-up required for the first 1,000 characters
  • Commercial license included
  • Smart cache can re-generate unchanged text at no extra cost
  • Supports multiple output formats and subtitle syncing

Cons

  • Character-based pricing may be hard to compare for some users
  • Advanced features may require learning SSML and formatting tags
  • Very long projects can take longer to process

What is SpeechGen best for?

  • Content creators
  • Video editors
  • E-learning teams
  • Small businesses
  • Localization teams
  • Podcast producers
  • Museums and tour operators

SpeechGen FAQ

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